| 应用小波变换提取林甸5.1级地震的前兆异常信息 |
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| 引用本文： | 石伟.应用小波变换提取林甸5.1级地震的前兆异常信息[J].东北地震研究,2006,22(3):38-43. |
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| 作者姓名： | 石伟 |
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| 作者单位： | 黑龙江省地震局,黑龙江省,哈尔滨,150090 |
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| 摘 要： | 应用了小波变换理论,对2005年林甸地震的前兆数据进行分析,研究在不同尺度下前兆数据的细节变化。结果表明,小波变换的多尺度分析方法将前兆数据分解成若干频段,容易识别和提取原始测值中不易分辨的震前异常,提高了识别前兆数据异常的能力。
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| 关 键 词： | 林甸地震 小波变换 地震前兆 信号处理 异常特征 |
| 文章编号： | 1004-2865（2006）03-0038-06 |
| 收稿时间： | 2005-11 |
| 修稿时间： | 2006-07 |
APPLYING THE WAVELET TRANSFORM TO REVEL THE ANOMALOUS INFORMATION BEFOR LINDIAN Ms5.1 EARTHQUAKE |
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| SHI Wei.APPLYING THE WAVELET TRANSFORM TO REVEL THE ANOMALOUS INFORMATION BEFOR LINDIAN Ms5.1 EARTHQUAKE[J].Seismological Research of Northeast China,2006,22(3):38-43. |
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| Authors: | SHI Wei |
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| Institution: | Earthquake Administration of Heilongjiang province, Heilongjiang Haerbin 150090, China |
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| Abstract: | The precusory data befor Lindian M_S5.1 earthquake in 2005 were analysed by applying the theory of the wavelet transform and the detail change of the precusory data was studyed on the different scale.The resule showed that the method of the multi-scale wavelet transform can decompose the precursory data into some frequency,revel the anomaly befor the event from the raw data,raise the ability of recognizing the precursory data anomaly. |
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| Keywords: | Lindian earthquake wavelet transform seismic precursor signal process abnormal information |
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